How to replace, on a curve, a corner point by an ordinary point and vice versa?
I get there by tweaking:
1_ I create an added point with the point command, it snaps to the corner point (which is a control point!) Of the curve.
2_I hide the added point and delete the corner point (which is a control point!).
3_ I reactivate the hidden point and with the command "add pt" I add an (ordinary!) Point to the curve. But the placement is approximate because there is no possible hooking on the reactivated point which is well placed.

Zooen

Hi,

If your curve is already a "soft" curve use the Seamless script.

You could use ReconstructCurve script.


Have fun

Hi Zooen, yes currently for that you need to delete the point you don't want and insert a new one. If you want the new one in the exact same spot as the old one you could insert a "point object" (Draw curve > More > pt) at that spot before deleting it so you have a reference to snap on to.

In the future I do want to add in a way to switch from a corner point to smooth point but that is not implemented as of yet, sorry.

- Michael

Thanks Micheal,
So, this is what I do. But currently there is only the snap "on" not "Point" for the function "add pt" to a curve. Well that is enough for me by zooming a little, the precision of the location is sufficient.

I will take this opportunity to ask another question. Is there a possibility or a trick to extend an arc-shaped curve while maintaining its overall shape?

- Zooen

Hi Zooen

> Is there a possibility or a trick to extend an arc-shaped curve while maintaining its overall shape?

If the curve IS an Arc (see Details), then the Extend command will extend it while maintaining the proper radius. If it is just an arc-shaped curve, then I don't have an answer.

--Larry

"""""Is there a possibility or a trick to extend an arc-shaped curve while maintaining its overall shape?""""

So the extend will just make a tangent offshoot...

A "trick" would be to know and create a line that is at the end of, and is as your your desired result. (Position-direction)

Then you can use blend, which will allow tangency and curvature to be maintained over distance

With history enabled, you can interactively drag and rotate to get the extended shape you want...

A tip: to easily convert corner points to smooth points in a curve you can use Max Smirnov's DelCorners script:

http://moi3d.com/forum/index.php?webtag=MOI&msg=6890.1

Hi Zooen,

re:
> So, this is what I do. But currently there is only the snap "on" not "Point" for the function "add pt" to
> a curve. Well that is enough for me by zooming a little, the precision of the location is sufficient.

Use "add pt" on the control polygon (with control points turned on), then drag the new point over to the point marker so you can snap on to it.


> I will take this opportunity to ask another question. Is there a possibility or a trick to extend an arc-shaped
> curve while maintaining its overall shape?

Replace your arc-shaped curve with an exact arc (use Draw curve > Arc > 3pts) and then the Edit > Extend command will do an arc extension rather than a straight line extension.

You could also draw in your own custom extension using Draw curve > Freeform > Control points, make sure you have "straight snap" enabled and place the first 2 points of the new curve along the tangent line.

- Michael

Hi Larry,
it is for an arc-shaped curve.

Hi Metin,
Decorners smooth all the corner points of a curve, I want to be able to choose the point (s) that I want to smooth into single point (s).

Thanks BurrMan ,
I will try these solutions

- Zooen

Thanks Michael,
For the corner points, Ok I understand this is the two-step solution.
For the extension of an arc-shaped curve I used an exact arch as you suggest; indeed it is a possible solution.
- Zooen

Hi, all
It is while making this coffee maker that I was confronted with the small problems exposed above (among others).
This is a tutorial for another software !!! But I find it interesting to compare the techniques and the tools and to find solutions with the tools at our disposal.
Finally I got out (not too bad, well in my opinion ...).

- Zooen

Nicely done Zooen!

--Larry

Turned out well Zooen! - Michael